ALE proposes to demonstrate a safe, low-cost, high-energy, and high-power lithium ion battery with full recovery capability from the over discharged state for use in the LEO AND GEO applications. Our proposed methodology will incorporate a zero voltage tolerant battery cell design and battery management system that will effectively protect the battery from damage in an overdischarge situation.The specific energy of proposed battery cell is about 270 Wh/kgLi ion batteries,overdischarge,Safe,space batteries